[PATCH] cgcc: handle ppc arch

[PATCH] cgcc: handle ppc arch

[Johannes Berg]

I'm not sure this is exactly the right thing to do because I'm
unfamiliar with the default CFLAGS, but it seems to at least make it
mostly work on powerpc.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
---
In particular, I don't know what that _STRING_ARCH_unaligned thing is
and whether I should define it to 0 or 1 (and why I need it at all.)

--- a/cgcc
+++ b/cgcc
@@ -241,6 +241,11 @@ sub add_specs {
 		&integer_types (8, 16, 32, $m32 ? 32 : 64, 64) .
 		&float_types (1, 1, 33, [24,8], [53,11], [113,15]) .
 		&define_size_t ($m32 ? "unsigned int" : "long unsigned int"));
+    } elsif ($spec eq 'ppc') {
+	return (' -D__powerpc__=1 -D_BIG_ENDIAN -D_STRING_ARCH_unaligned=1' .
+		&integer_types (8, 16, 32, $m64 ? 64 : 32, 64) .
+		&float_types (1, 1, 21, [24,8], [53,11], [113,15]) .
+		&define_size_t ($m64 ? "long unsigned int" : "unsigned int"));
     } elsif ($spec eq 'host_os_specs') {
 	my $os = `uname -s`;
 	chomp $os;
@@ -254,6 +259,8 @@ sub add_specs {
 	    return &add_specs ('sparc');
 	} elsif ($arch =~ /^(x86_64)$/i) {
 	    return &add_specs ('x86_64');
+	} elsif ($arch =~ /^(ppc)$/i) {
+	    return &add_specs ('ppc');
 	}
     } else {
 	die "$0: invalid specs: $spec\n";

Re: [PATCH] cgcc: handle ppc arch

[Josh Triplett]

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Johannes Berg wrote:
> I'm not sure this is exactly the right thing to do because I'm
> unfamiliar with the default CFLAGS, but it seems to at least make it
> mostly work on powerpc.
> 
> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
> ---
> In particular, I don't know what that _STRING_ARCH_unaligned thing is
> and whether I should define it to 0 or 1 (and why I need it at all.)

"mostly work" seems like an improvement on "doesn't work"; I can always
apply another patch later to make it more correct.  Applied and pushed.

- Josh Triplett



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